leaky relief valve the one behind the boiler

[Deleted User]

The relief valve on my old twenty five year old peerless boiler is leaking. Can it be I might need an expansion tank? Got to get to it right away so I'll start there. Could use some suggestions from anyone who might have had this prob. Thanks

John@Reliable_9

Best to call someone , may be cheaper too

Why? Could be a bad pressure valve,bad x-tank or bad water feed valve.Quessing really isn't the right way to find out, besides system must be drained to fix so that's the time to check all that I mentioned. Hope this helps John@Reliable

john@TR

relief valve

yeah, what he said

[Deleted User]

leaky boiler relief valve

Thanks for the quick reply John. I plugged up the relief
valve and still get the drip so I banged on the x tank and it seemed a bit full anyway it did not give me a very hollow noise so I'm quessing maybe the diaphram is shot. Do I still have to drain it to change the tank? It's a peerless boiler and there are some shutoff which one's I don't know so maybe I shut them all off. There is no pressure valve that I know of, so plugging the relief v said little to me other then it continued to drip. I did not tefloned the plug just wanted it to stop a bit so maybe I should have and it would have stopped.
Did I increase the pressure possibility? I can't get to this for a couple of days.
fred

[Deleted User]

Turn off the POWER and Fuel to the boiler, un-plug the relief valve and put a bucket under it and call a pro quickly...By plugging the relife valve, you are sitting on a potential bomb...The pro will will check the system for other problems also...Better safe then sorry...

Alan(CaliforniaRadiant)Forbes

Never had much luck

diagnosing a dripping relief valve on an old boiler. If I replaced the relief valve, fill valve or the expansion tank by themselves, the relief valve would keep on dripping, even after troubleshooting the components. So now, I replace all 3 whenever there's a problem and get it right the first time. Nothing worse than a callbacks, for me and the owner.

The older system didn't have isolation valves and you've got to drain down the whole system. Do yourself a favor and isolate the components with ball valves so that you or the guy that comes after you has an easier time of it.

But be careful: don't put a valve anywhere between the relief valve and the boiler. You always want the relief valve to "see" the heat source.

To Learn More About This Professional, Click Here to Visit Their Ad in "Find A Professional"

oil-2-4-6-gas

if you have a coil in the boiler for hot water to your sinks ,it might be leaking also,the expansion tank may be piped wrong , is itpiped to the boiler-are there any valves between it and the boiler? is it open ? the piping may be clogged going to it, if its piped after a flow check or a pump it wont work correctly --the valve itself may be bad,expansion tank could be full,the feeder could be overfeeding,the by-pass feed valve(if you have 1)may be leaking there are a few other reasons besides what was stated -----DO NOT EVER RUN A BOILER WITH THE RELIEF PLUGGED --you may destroy your boiler

STEVEN MARKS

relief valve

take out the plug or you may find a hloe in your roof and the boiler on the front lawn.
the relief valve is the most important safety on any boiler and you just rendered it useless.

[Deleted User]

leaky relief valve the one behind the boiler

theoretically if the x tank is bad it won't ring hollow because the diaphram is torn and the water has filled it. So I shut off all valves big and small that might have water going on. Drained the little that was left between the closes shutoff valve and the relief valve. tapped the x tank and it seemed kinda hollow, the lower half sure did. Pushed the air valve underneath of it and some air but no water came out so, and of course, I closed down the elec. change the reliefV with same of. Did all of the reverse and Eureka!! All is well.
Thanks all.
friends that come when you need, are friends indeed.

Matt Undy

relief valve

> theoretically if the x tank is bad it won't ring

> hollow because the diaphram is torn and the water

> has filled it. So I shut off all valves big and

> small that might have water going on. Drained the

> little that was left between the closes shutoff

> valve and the relief valve. tapped the x tank and

> it seemed kinda hollow, the lower half sure did.

> Pushed the air valve underneath of it and some

> air but no water came out so, and of course, I

> closed down the elec. change the reliefV with

> same of. Did all of the reverse and Eureka!! All

> is well. Thanks all. friends that come when you

> need, are friends indeed.

Matt Undy

relief valve

If you think that you should EVER cap a relief valve, you shouldn't be workng on this yourself.

Matt

Ray Landry

Everytime that boiler fired was like a time bomb ticking... yikes!